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Russian-Olive, Silver-Berry (Elaeagnus)

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Home « Wisconsin « Brown « Elaeagnus

Russian-Olive, Silver-Berry Genus Details

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The russian olive tree grows to 20 feet tall. It has leaves 1 1/2 inches long and 3/4 inches wide. Leaves are lance shaped, dull gray-green and silvery underneath. The bark is gray-brown and sheds in long strips. Flowers are 3/8 inch long, bellshaped, yellow inside, fragrant and appear in late spring to early summer. Fruit is 3/8 to 1/2 inch long with yellow-brown berries produced. Russian olives prefer moist soils and are native to south Europe and Asia. The fruit is consumed by song birds, pheasants and quail. The tree is tolerant of cold, drought and air pollution. It is a fairly popular ornamental tree.
Russian-Olive (Elaeagnus angustifolia).
Russian-Olive (Elaeagnus angustifolia).
Autumn-Olive (Elaeagnus umbellata).
Autumn-Olive (Elaeagnus umbellata).

Russian-Olive, Silver-Berry Allergy Info

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Large amounts of pollen are shed in the early summer when the yellow flowers are in bloom. Some allergenicity has been reported, although not in great volume.

Russian-Olive, Silver-Berry Pollen Description

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Elaeagnus grains are oblate; the amb triangular with convex sides and 3-colporate. The colpi are short and the ora lalongare. The sexine is thickened at the apertures.
The pollen grains are 24-30 x 40-44 micrometers in size.

Species in This Genus

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Allergenicity Legend:
Mild Allergen Mild Allergen  |  Moderate Allergen Moderate Allergen  |  Severe Allergen Severe Allergen  |  Allergy Test Allergy Test Available
Russian-Olive, Silver-Berry (Elaeagnus) is a genus of the ELAEAGNACEAE family.
This genus includes the following allergenic species:

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Russian-Olive, Silver-Berry Genus Location

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The shaded areas on the map indicates where the genus has been observed in the United States. Click the map to see a full scale version of these allergy areas.
  - Native, observed in a county
  - Introduced, observed in a county
  - Rarely observed

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